Campaign crash since latest 3GB update

Me and my brother are doing COOP splitscreen legendary on regret and we are crashing near the end of the level after the big room with the hunters. its not in a specific place but it happens when its about to revert a checkpoint. When we resume the game we have to restart the level and since halo 2 campaign is stupid hard… it takes a pretty long time to get back to where we were to have it crash again.

anyone else have that problem?

I’ve had a crash twice trying to complete this level with my daughter on co-op legendary. First crash happened right after killing the prophet regret as it was loading the cutscene. Had to start the level over again. Second time happened right after the gondola as we were about to enter the temple with the prophet… again crashed during the short cut scene. Haven’t tried since the update as I am sitting here waiting for it to install. Even though we beat the level on the first attempt it did not give us the achievement. Pretty sure it is a legendary bug as our first par time acheivement on normal completed and saved without a crash.

Has anyone out there actually beaten this level on co-op? Crashed 3 times for me while trying to kill regret want to know if I should waste my time trying again or just skip it. So -Yoinking!- dumb.